Strainer and the method of making the same



Jan. 30, 1940. w. R. BECHER 2,188,493

STRAINER AND THE METHOD OF MAKING THE SAME H Filed March 4, 1938 3m entor WESLEY R. BECHER.

' (Ittorneg Patented Jan. 30, 194

' s'raamnaalvn 'rnn METHOD or MAKING THE SAME- Wesley n. Becher, Wethersfleld, Com, assignmto The -Silex Comp n Hartford, Conn, a corposition of Connecticut 7 Application March 4, 193a, Serial No. lessor 3, Ulaims.

This invention relates to strainers and the method of making the same; The present invention is particularly adapted for such strainers as are used in connection with cofiee makers and 5 comprises a specific embodiment of the broad invention set forth in the co-pendi'ng application,

Serial No. 119,254. filed January 8, 1937.

A strainer of this class is usually constructed from a disc of suitable material which is applied over a drainer plate and secured thereto by drawing the edges of said strainer beneath the plate.

It is, therefore, highly desirable that an elasticmember, in theform of a band or strip, be provided for drawing the said edges inwardly upon the disc so that the strainer may be readily applied to and retained in its proper position over the drainer plate.

Heretoiore, such elastic members have been secured adjacent to and along the edges of the disc by means of a row 01 stitches, or a fold,

within which the said member is encased and is allowed to slip therein when stretched or permitted to contract to its normal condition. in. other cases, the said members have consisted of a number of elastic strands contained within a woven flexible covering. and have been secured to the said disc by a row of stitches extending through the covering and parallel to the strands.

. In each of such cases, it has been found that, $0 upon becoming broken, the said strands will .slip away, by contraction, from their position rela tive to the edge of the strainer disc and thereby become ineffective for drawing the surrounding edges of the disc inwardly thereon.

The primary object of this invention, therefore, is .to provide an elastic member which is secured adjacent to and along the edge of the disc, for the purpose above described, in such a manner that, even should it become broken at.

one or more points, it will still remain 'efiective to function as intended; the said object being attained by providing the said elastic member in the form of a single elastic band and sewing the same directly to the strainer disc by means of a row 01' stitches, so that each of said stitches will secure the corresponding portion of the elastic band in fixed position with relation to the corresponding portion of the periphery of the disc.

Since such strainers are commonly made of a woven cloth material, it is necessary" that the I time prevent the material of said disc from unedges of the disc be stitched in order to prevent.

unr veling of the said material. Further, since such strainers become quickly soiled from use and it is, therefore, necessary to replace them.

as frequently, it becomes important that they be 'that may be of a rubber material imown as produced in the most economical manner in order that it maybe practical to discard them as they are soiled A further object of this invention, therefore, is the provision of means whereby the said elas- 5 tic member may be sewed to the strainer and the edges of the material irom which the said strainer is made may be prevented from unraveling, by the use of a stitch commonly mown as an over-edge stitch, so that it will be rendered 1o possible to produce strainers of this type in the most economical manner.

Other objects and advantages of this invention will be clearly understood from the following descrlption and from the accompanying drawing, in it which:

Figure 1 is a fragmentary view, in central vertical section, illustrating my improved strainer as applied to the upper bowl of a coflee maker.

Figure 2 is a plan view, in elevation, showing i the said strainer in its extreme-openposition.

Figure 3 is an enlarged fragmentary view, in vertical section, showing the construction of the edge portion or said strainer.

Figure 4 is a bottom view, in elevation, showing the strainer in its normal condition.-

.As illustrated in Figure 1, the numeral B de notes the upper bowl of a coffee maker which is usually ,constructedoi'glass and which has a drainer plate 3, that is held in engagement with $0 the bottom of said bowl by means of a retaining spring member 7 as clearly described in the above co-pending application. A strainer 5 is mounted over the said drainer plate and extends over the edge thereof and underneath the same so that it is clamped between the plate and the bottom oi. the bowl 5.

An elastic member 9 which, as shown, preterably consists solely of an elastic strip or ribbon.

lastex is secured by sewing the same adjacent to the edge of the strainer'disc by over-seaming with arow of stitches it which extend through the said elastic member and sew the same directly to the strainer material.-

The said stitches are preferably of a term known as over-edge stitches which overlap the edges of the said disc and thereby serve to sew the elastic strip to the strainer and at the same :raveling along the said edges.

It will be noted that the stitches It extend from the edge of the disc to a point near the opposite side of the. elastic band 9. This serves to substantially enclose the greater portion or said u fastened thereto. It will be understood that, should the said.

band within said stitches so as to conceal the same and prevent undue wear thereof from manipuiation.

The manner in which the said strainer is made preferably consists of forming the strainer material in the shape of a disc, then placing the strip of elastic material in a stretched condition upon the surface of the disc, adjacent to and along the edge thereof, and stretching the same while applying the row of stitches ll so that, after the said stitches have been applied entirely around the edge of the disc and released, it will return to its normal condition and draw the edges of said disc inwardly thereby forming the same into a pouch, such as illustrated in Figure 4, which may be easily applied over the drainer plate 6 by simply stretching the edge over the said plate.

As it will be clearly understood from the illustration in Figure 2, the said elastic strip is sewn around the disc and the ends thereof may be overlapped for a distance, as at Ii, by continuing the sewing operation over the leading end of the said elastic strip. The said elastic strip, and the thread which forms the stitches, may then be cut off and the said strip will form a continuous elastic band which extends entirely along the edge of said disc and is securely elastic band now become broken, it will not be permitted to contract into an ineffective cundition for the reason that the said stitches will retain the broken sections of the band in their respective location, along the edge of the disc, and the said sections wil continue to function for drawing the edge portions of the disc inwardly in the same manner that the entire band would function if it had not been broken.

While there is shown, in the illustration, an elastic member which consists solely of a rubber strip, the same, may also be of any well known type of elastic bands and may be sewn to the strainer by means of a common form of straight.

stitches if desired without departing from the scope of my invention as set forth in the appended claims.

I claim: I

1. The method of making a strainer of the class described from a sheet of cloth material which consists of stretching an elastic member, applying the said member to the periphery of said sheet while in stretched condition and securing the said member to said sheet by means of a row of stitches which extend through said member and sheet; the length of said member, when in contracted condition, being substantially less than the periphery of said sheet, whereby, when said member is contracted, the said sheet is drawn into the form of a bag.

2. The method of making a strainer of the character described from a disc of cloth material which consists oi applying a stretched elastic band or strip adjacent to and along the edge of said disc and sewing the same directly to said disc by means of a row of stitches which extend through said elastic band adjacent to the inner edge thereof, through the said disc and overlap the opposite edge of said band and the edge of said disc; the length of said elastic band, when in contracted condition, being substantially less than the circumference of said disc, whereby, when said elastic band is contracted, said disc is drawn into the form of a bag.

3. The method of making a strainer of the class described from a disc of cloth material which consists of applying an elastic member while in stretched condition and simultaneously securing the same adjacent to and along the edge of said disc by means of a row of stitches penetrating said member and disc and overlying the edge of said disc and one edge of said member; the length of said member, when in contracted condition, being substantially less than the periphery of said disc, whereby, when the said member is contracted, the said disc will be drawn into the form of a pouch.

WESLEY R. BECHER. 

